WASHINGTON --- The devastation of American honeybee colonies is the
result of a complex stew of factors, including pesticides, parasites,
poor nutrition and a lack of genetic diversity, according to a
comprehensive federal study
<http://www.usda.gov/documents/ReportHoneyBeeHealth.pdf> published on
Thursday. The problems affect pollination of American agricultural
products worth tens of billions of dollars a year.

The report does not place more weight on one factor over another, and
recommends a range of actions and further research....

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